ARDUINO 12V BATTERY VOLTAGE MONITOR SERIAL
ARDUINO 12V BATTERY VOLTAGE MONITOR PRO

ARDUINO 12V BATTERY VOLTAGE MONITOR SERIAL

The ATmega328P microcontroller provides UART TTL (5V) serial communication which can be done using digital pin 0 (Rx) and digital pin 1 (Tx). Reset Pin: Making this pin LOW, resets the microcontroller.Īrduino can be used to communicate with a computer, another Arduino board or other microcontrollers.AREF: Used to provide reference voltage for analog inputs with analogReference() function.Analog pin 4 (SDA) and pin 5 (SCA) also used for TWI communication using Wire library.Īrduino Uno has a couple of other pins as explained below:.They measure from 0 to 5 volts but this limit can be increased by using AREF pin with analog Reference() function. In-built LED Pin 13: This pin is connected with an built-in LED, when pin 13 is HIGH – LED is on and when pin 13 is LOW, its off.Īlong with 14 Digital pins, there are 6 analog input pins, each of which provide 10 bits of resolution, i.e.SPI Pins 10 (SS), 11 (MOSI), 12 (MISO) and 13 (SCK): These pins are used for SPI communication.PWM Pins 3, 5, 6, 9 and 11: These pins provide an 8-bit PWM output by using analogWrite() function.External Interrupt Pins 2 and 3: These pins can be configured to trigger an interrupt on a low value, a rising or falling edge, or a change in value.They are connected with the corresponding ATmega328P USB to TTL serial chip. Serial Pins 0 (Rx) and 1 (Tx): Rx and Tx pins are used to receive and transmit TTL serial data.Out of these 14 pins, some pins have specific functions as listed below: Each pin operate at 5V and can provide or receive a maximum of 40mA current, and has an internal pull-up resistor of 20-50 KOhms which are disconnected by default.

The 14 digital input/output pins can be used as input or output pins by using pinMode(), digitalRead() and digitalWrite() functions in arduino programming. Arduino Uno has 14 digital input/output pins (out of which 6 can be used as PWM outputs), 6 analog input pins, a USB connection, A Power barrel jack, an ICSP header and a reset button. Along with ATmega328P, it consists other components such as crystal oscillator, serial communication, voltage regulator, etc.

ARDUINO 12V BATTERY VOLTAGE MONITOR PRO

Note: Complete technical information can be found in the Arduino UNO Datasheet, linked at the bottom of this page.Īrduino Nano, Arduino Pro Mini, Arduino Mega, Arduino Due, Arduino MKR1000 Wi-Fi Board, Arduino LeonardoĪrduino Uno is a microcontroller board based on 8-bit ATmega328P microcontroller.

To provide reference voltage for input voltage.ĪTmega328P – 8 bit AVR family microcontroller Used to receive and transmit TTL serial data.ġ0 (SS), 11 (MOSI), 12 (MISO) and 13 (SCK) Used to provide analog input in the range of 0-5V

Vin: Input voltage to Arduino when using an external power source.ĥV: Regulated power supply used to power microcontroller and other components on the board.ģ.3V: 3.3V supply generated by on-board voltage regulator. Along with ATmega328P MCU IC, it consists other components such as crystal oscillator, serial communication, voltage regulator, etc. Arduino Uno is a popular microcontroller development board based on 8-bit ATmega328P microcontroller.

Arduino 12v battery voltage monitor